Stained Glass Gelatin Cake

Prep time: 30 min
Servings: 10
Yield: 10 servings

Description

This colorful no-cook stained glass gelatin cake combines cubes of rainbow Jell-O with creamy white gelatin for a fun, retro dessert.

Ingredients

5 (3 ounce) packages sweetened gelatin mix (such as Jell-O®), 5 different colors
3 1/2 cups boiling water, divided
3 1/2 cups cold water, divided
cooking spray
1 (1 ounce) package unflavored gelatin powder
1 (14 1/10 ounce) can sweetened condensed milk
1 1/4 cups heavy whipping cream
1 teaspoon vanilla extract

Directions

1 Pour each gelatin mix into a separate bowl. Pour 1/2 cup boiling water into one bowl and stir until gelatin is completely dissolved, about 2 minutes; stir in 1/2 cup cold water. Repeat to dissolve remaining gelatin colors. Refrigerate all bowls until completely set, 4 hours to overnight.
2 Spray a 9-inch cake pan with cooking spray.
3 Remove gelatin from the refrigerator and slice each color into cubes. Transfer cubes to a bowl and gently toss together to mix colors randomly. Transfer into the prepared pan.
4 Pour remaining 1 cup cold water into a bowl and sprinkle unflavored gelatin over top; let sit until dissolved, 2 to 3 minutes. Add remaining 1 cup boiling water and stir until gelatin is completely dissolved.
5 Combine condensed milk, cream, gelatin mixture, and vanilla in a blender. Blend until smooth and well mixed, about 30 seconds. Pour evenly over gelatin cubes in the cake pan. Use a spatula to evenly distribute milk mixture.
6 Refrigerate until set, 4 hours to overnight.
7 Run a knife along the sides of the cake pan and carefully invert cake onto a plate.